@charset "utf-8";
.box {
  max-width: 640px;
  min-width: 300px;
  margin: 0 auto;
  background: #cccccc;
  height: 200px;
  position: relative;
}
.box header {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  background: rgba(201, 21, 35, 0.5);
}
.box header .top {
  position: relative;
  line-height: 40px;
  width: 100%;
}
.box header .top form {
  margin-left: 75px;
  padding-right: 55px;
}
.box header .top form .icon-logo {
  background-position: 0 -103px;
  width: 60px;
  height: 36px;
  position: absolute;
  top: 4px;
  left: 10px;
}
.box header .top form input {
  width: 100%;
  height: 30px;
  border-radius: 15px;
  margin-top: 5px;
  padding-left: 30px;
}
.box header .top form .icon-search {
  position: absolute;
  left: 80px;
  background-position: -60px -109px;
  width: 20px;
  height: 20px;
  top: 10px;
}
.box header .top form .login {
  position: absolute;
  font-size: 16px;
  right: 3px;
  line-height: 40px;
  color: #fff;
  top: 0;
}
.box .banner > ul > li > img {
  width: 100%;
}
.box nav {
  margin-top: 10px;
}
.box nav ul > li {
  width: 25%;
  float: left;
  text-align: center;
}
.box nav ul > li img {
  width: 40px;
  height: 40px;
}
.box nav ul > li p {
  margin: 10px 0;
}
